Title: Enable superior performance of ultra-high loading electrodes through the cost-efficient solvent-free electrode manufacturing technology

Journal Article · · Energy Storage Materials
 [1];  [2];  [1];  [2];  [3];  [4];  [5];  [2];  [1]
  1. Worcester Polytechnic Institute, MA (United States)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Worcester Polytechnic Institute, MA (United States); AM Batteries, Chelmsford, MA (United States)
  4. Argonne National Laboratory (ANL), Argonne, IL (United States)
  5. Argonne National Laboratory (ANL), Argonne, IL (United States). Center for Nanoscale Materials (CNM)

This research explores an innovative solvent-free method for fabricating ultra-high loading NMC811 and graphite electrodes (~6mAh∙cm-2), showcasing remarkable electrochemical performance enhancements compared to the electrodes prepared by the conventional slurry-casting method. Here, the optimized microstructure with dry-printed (DP) electrodes enhanced electrolyte penetration and minimized lithium-ion diffusion tortuosity resulting in improved rate performance at high current rates. Additionally, this innovative electrode manufacturing approach enables more uniform CEI and SEI formation and growth, which effectively doubles the cycle life of single-layer pouch cells with DP electrodes. Beyond the performance enhancements, this method also offers a notable 29.2 % overall cost advantages, potentially revolutionizing future battery manufacturing. The findings presented in this work underscore the potential of solvent-free manufacturing technology as a high-loading capable and cost-efficient path for advanced battery production.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-06CH11357; EE0006250
OSTI ID:
2482276
Journal Information:
Energy Storage Materials, Journal Name: Energy Storage Materials Vol. 69; ISSN 2405-8297
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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